I desperately need help with these problems! All info are provided. The chart that it is referring to is the chart in problem 1

Problem 1 Doe Co. had the following inventory transactions. January 1 Beginning Inventoly 600 units @ $55 / unit January 11 Purchase 550 units @ $56 / unit F ebruaiy 13 Purchase 230 units @ $57 I unit July 21 Purchase 370 units @ $58 / unit August 5 Purchase 410 units @ $59 / unit February 15 Sales 525 units @ $100 / unit August 10 Sales # - 210 units @ $100 / unit Required: M Compute the cost assigned to ending inventmy using FIFO. M Using the attached chart, calculate the lower of cost or market for the inventory as a whole, by major category, and applied separately to each item. Problem 3 Use the attached adjusted trial balance for Doe Co. to complete the following: 1. Prepare Closing Journal Entries 2. Complete the taccount for income summary